as longtime employee of dealers in service departments, i can tell you this is the wrong advice unless you just want to irritate the dealer's service adviser by insisting he fix it now, and therefore making him/her not want to help you at all, ever. dealers are at the mercy of the manufacturer to supply parts and…

Show me that test in the mountain west, at 6k-10k foot elevations, with and without a trailer.

For the US. 2.8L 4cyl diesel with an estimated 200hp / 370tq.